Vihaan Networks Intern Interview Questions and Answers

Difficulty was average in the coding questions.

Q1. Resume screening and discussed about projects.
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Q2. DSA and Database questions
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Q3. Python fundamentals and data visualization
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Easy to moderate questions. Could clear if prepared!!

Q1. All about c c++
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There will be some mcq and coding questions.

Q1. This is will be a 30 mins interview.
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Q2. Questions on python,networking,ds,os
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Q1. Coding question on c,c++,python. Basics of networking ,oops and os.
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It was JS question paper sheet.

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Q1. Technical one on one round related to projects and technologies
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Q2. Projects and programming language related ds algo
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Q1. Managerial round
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Q2. Basic everyday situation questions
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Q1. Final hr round salary etc
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Round duration - 70 Minutes
Round difficulty - Hard

It started around 11 Am on MS teams.
There was only 1 interviewer.
The interviewer asked questions from almost every concept, whatever I mentioned in my resume.

Data Structure and Algorithms: Complete heap Sort(Full code on pen and paper), check a number is a power of 2 or not, and some follow-up questions on data structure and algorithms.

OS: Scheduling algorithms, Round Robin(implementation), Process States, and some follow-up questions on that also.
OOPS: Virtual Functions, Copy Constructors, Runtime Polymorphism, Destructors with their implementation, and lots of follows up questions on that also. They gave more focus on oops concepts in c++ only. If you know oops concepts in c++ then you should be able to explain them well with proper implementation.
Project: Complete description, Database schema(Complete diagram on paper), Data flow diagram, and which technology used in projects. My project was on spring boot based web application with proper database design. They asked many questions related to the flow of the project and request methods(POST, PUT, UPDATE, DELETE).
And some other basic questions on projects as well. The duration of this round was almost a complete hour. 7 students shortlisted after 1 round.

Q1. 
Heap Sort Problem Statement
Your task is to sort an array of integers in non-decreasing order using the Heap Sort algorithm.
Input:
The first line contains an integer 'T' denoting the number of test cas...read more
Ans. 
Heap Sort is used to sort an array of integers in non-decreasing order by creating a max heap and repeatedly extracting the maximum element.
• Create a max heap from the input array.

• Swap the root (maximum element) with the last element and reduce the heap size.

• Heapify the root element to maintain the heap property.

• Repeat the above steps until the heap size is 1.

• The array will be sorted in non-decreasing order.
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Q2. 
Ninja's Pattern with Powers of 2
Ninja, who loves playing with numbers, sets out to arrange numbers within 'N' rows. The unique arrangement follows these rules: the first row contains 1 number, the second...read more
Ans. 
Generate a pattern of numbers in rows following a powers of 2 sequence with numbers 1 to 9, recycling back to 1.
• Start with 1 number in the first row, 2 numbers in the second row, 4 numbers in the third row, and so on following powers of 2.

• Fill the pattern with numbers from 1 to 9, recycling back to 1 after reaching 9.

• Output the pattern for the given number of rows 'N'.

• Example: For N = 4, the pattern would be 1, 2 3, 4
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